Why is half of the ship black and half of it is silver colored? that's because the bottom as seen from orbital entry is, has a heat shield on it. So the black there is the heat shield and then the core structure of the rocket is a special alloy of stainless steel and that's , page 33

Why is half of the ship black and half of it is silver colored?

that's because the bottom as seen from orbital entry is, has a heat shield on it. So the black there is the heat shield and then the core structure of the rocket is a special alloy of stainless steel and that's where you see the sort of shiny silver parts are stainless steel.

The reason for steel over aluminum is that the heat of atmospheric entry and the heat of the rocket engines is enough to easily melt aluminum but steel is much more resilient against both a sand heating, but especially the re entry heating.

And you don't have to paint it, which is actually very difficult at to paint a large object that is going through cry genetic cycles and have the paint stay on.
It's quite challenging

1周内 1个月内 1年内全部时间

BREAKING:
Denmark is having its “Notre Dame moment”
The historical Børsen Stock Exchange building in Copenhagen is on fire.
It was built in 1625 and is one of the city’s most beautiful buildings with its elegant spire
Yesterday was the 5th anniversary of the Notre Dame fire
时政
( twitter.com)

1年前 • Visegrád 24 • 下载视频 0 评论

00:00:05

Natakamani was the leader of the Kushite Empire between 1 bc-20 ce, the time that the mythical Jesus is said to have lived. However, Jesus is a myth with no archaeological evidence but a book of fairytales. Meanwhile Natakamani is archaeologically attested to be real.
时政
( twitter.com)

1年前 • Ancient Kemite 0 评论

Hysterical reactions like this is how you know that is doing work that really matters.
This is the one shot the American people have to defeat BUREAUcracy, rule of the bureaucrats, and restore DEMOcracy, rule of the people. We’re never going to get another chance like
btc
( twitter.com)

1年前 • Elon Musk 0 评论

Elon Musk: One of the benefits of going to Mars is to have life insurance for life collectively.
“It's not about going to Mars to visit once, but it is to make life multiplanetary so that we can expand the scope and scale of consciousness to better understand the nature of the
btc
( twitter.com)

8个月前 • ELON CLIPS • 下载视频 0 评论

00:00:35

Why is Tibet known in Mandarin as Xizang 西藏 (West Zang)? And why is there no Eastern Zang 東藏?
Well: Historically, several Chinese names for Tibet have had the "West" 西 prefix: 西番、西藏、西招 and others! 🧵 1/
时政
( twitter.com)

2年前 • Egas Moniz-Bandeira ᠡᡤᠠᠰ ᠮᠣᠨᠢᠰ ᠪᠠᠨᡩ᠋ᠠᠶᠢᠷᠠ 0 评论

This is cool.....she's playing The Godfather.
What is the name of this instrument?
What is it used for, religious ceremonies or celebrations?

有趣
( twitter.com)

1年前 • Figen • 下载视频 0 评论

00:00:45

Someone’s gonna have to explain why George Conway was already at John Bolton’s house at the crack of dawn 🤔
btc
( twitter.com)

6个月前 • Donald Trump Jr. 0 评论

Tesla Cybertruck is notably the first time that Tesla is straight up not delivering on some of the key specs they promised
Promised specs:
500+ mile range
$70,000
Delivered:
340 mile range
$100,000
Tesla (and others) have taken the stance that the thousands of pounds of extra…
时政
( twitter.com)

2年前 • Marques Brownlee 0 评论

Elon Musk “There were over $300M of loans that’s been given out to people under the age of 11… the youngest recipient of an SBA loan is a 9 month old.. obviously, which is fraudulent.”
btc
( twitter.com)

10个月前 • Tesla Owners Silicon Valley • 下载视频 0 评论

00:00:59

A man's daughter tries to spot him in the crowd at a school event.
This is why it is so important to be involved in your children's activities.
有趣
( twitter.com)

7个月前 • The Figen • 下载视频 0 评论

00:01:00

This right here:
IS THE SINGLE GREATEST CRIME EVER PERPETRATED AGAINST THE AMERICAN PEOPLE:
Border Czar Tom Homan: “No one ever talks about it. I’ll talk about it.”
“Why did they release people into the interior United States rather than put them into an ICE bed? Why not put
btc
( twitter.com)

4个月前 • 🇺🇸RealRobert🇺🇸 • 下载视频 0 评论

00:01:03

The greatest lie of the modern world? That men and women are the same, that they are interchangeable.
Here’s a thread on why they never were, and never will be.
时政
( twitter.com)

10个月前 • The Feminist Turned HouseWife 0 评论

Americans are patriotic. We love our country. We love what it stands for. We fly the American flag from our homes, stores and public buildings. We are proud of the nation we have built over two and a half centuries.
时政
( twitter.com)

1年前 • Ambassador Nicholas Burns 0 评论

Kilmar Abrego Garcia’s wife’s ex, who is the father of two of her kids:
“She is dating a gang member”
btc
( twitter.com)

9个月前 • America 0 评论

this is one of the best analyses of the wider, long-term impact of BJ crackdown on HK on China's economy i've read.
时政
( www.project-syndicate.org)

2年前 • Ho-fung Hung 0 评论

Mitch’s vote today—like so much of the last few years of his career—is one of the great acts of political pettiness I’ve ever seen.
btc
( twitter.com)

10个月前 • JD Vance 0 评论

Since there has been a sudden burst of experts on the handling of prisoners of war, here is what I see from the photos of the and Hamas prisoners of war in Gaza. 🧵
时政
( twitter.com)

2年前 • John Spencer 0 评论

Having world war level of national debt without fighting a world war is catastrophic.
The team is tracing and stopping the insane levels of waste and fraud very quickly.
btc
( twitter.com)

1年前 • Elon Musk 0 评论

My car actually drives itself. Legit, of all the reasons to get a Tesla this is the one. I am rarely in awe of technology but this is insane.
btc
( twitter.com)

11个月前 • Insurrection Barbie 0 评论

Why is half of the ship black and half of it is silver colored? that's because the bottom as seen from orbital entry is, has a heat shield on it. So the black there is the heat shield and then the core structure of the rocket is a special alloy of stainless steel and that's btc ( twitter.com )

btc

时政

Natakamani was the leader of the Kushite Empire between 1 bc-20 ce, the time that the mythical Jesus is said to have lived. However, Jesus is a myth with no archaeological evidence but a book of fairytales. Meanwhile Natakamani is archaeologically attested to be real. 时政 ( twitter.com)

时政

Hysterical reactions like this is how you know that is doing work that really matters. This is the one shot the American people have to defeat BUREAUcracy, rule of the bureaucrats, and restore DEMOcracy, rule of the people. We’re never going to get another chance like btc ( twitter.com)

btc

Elon Musk: One of the benefits of going to Mars is to have life insurance for life collectively. “It's not about going to Mars to visit once, but it is to make life multiplanetary so that we can expand the scope and scale of consciousness to better understand the nature of the btc ( twitter.com)

btc

Why is Tibet known in Mandarin as Xizang 西藏 (West Zang)? And why is there no Eastern Zang 東藏? Well: Historically, *several* Chinese names for Tibet have had the "West" 西 prefix: 西番、西藏、西招 and others! 🧵 1/ 时政 ( twitter.com)

时政

This is cool.....she's playing The Godfather. What is the name of this instrument? What is it used for, religious ceremonies or celebrations? 有趣 ( twitter.com)

有趣

Someone’s gonna have to explain why George Conway was already at John Bolton’s house at the crack of dawn 🤔 btc ( twitter.com)

btc

时政

Elon Musk “There were over $300M of loans that’s been given out to people under the age of 11… the youngest recipient of an SBA loan is a 9 month old.. obviously, which is fraudulent.” btc ( twitter.com)

btc

A man's daughter tries to spot him in the crowd at a school event. This is why it is so important to be involved in your children's activities. 有趣 ( twitter.com)

有趣

btc

The greatest lie of the modern world? That men and women are the same, that they are interchangeable. Here’s a thread on why they never were, and never will be. 时政 ( twitter.com)

时政

Americans are patriotic. We love our country. We love what it stands for. We fly the American flag from our homes, stores and public buildings. We are proud of the nation we have built over two and a half centuries. 时政 ( twitter.com)

时政

Kilmar Abrego Garcia’s wife’s ex, who is the father of two of her kids: “She is dating a gang member” btc ( twitter.com)

btc

this is one of the best analyses of the wider, long-term impact of BJ crackdown on HK on China's economy i've read. 时政 ( www.project-syndicate.org)

时政

Mitch’s vote today—like so much of the last few years of his career—is one of the great acts of political pettiness I’ve ever seen. btc ( twitter.com)

btc

Since there has been a sudden burst of experts on the handling of prisoners of war, here is what I see from the photos of the and Hamas prisoners of war in Gaza. 🧵 时政 ( twitter.com)

时政

Having world war level of national debt without fighting a world war is catastrophic. The team is tracing and stopping the insane levels of waste and fraud very quickly. btc ( twitter.com)

btc

My car actually drives itself. Legit, of all the reasons to get a Tesla this is the one. I am rarely in awe of technology but this is insane. btc ( twitter.com)

btc

What is the name of this animal? 时政 ( twitter.com)

时政

Gene Tierney is one of the greats. 有趣 ( twitter.com)

有趣

Compassion is the purest form of love ... 有趣 ( twitter.com)

有趣

This is one of the best songs. 有趣 ( twitter.com)

有趣

This is the definition of intrusive thoughts 有趣 ( twitter.com)

有趣

the machines level of confidence is inspiring 有趣 ( twitter.com)

有趣

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Why is half of the ship black and half of it is silver colored?
that's because the bottom as seen from orbital entry is, has a heat shield on it. So the black there is the heat shield and then the core structure of the rocket is a special alloy of stainless steel and that's
btc
( twitter.com )